Sam chooses a guinea pig named Henry to be her pet, envisions a dog named Nelly visiting and helping her younger brother Liam feel comfortable in his kindergarten class, and encourages Liam to also get a guinea pig as a pet.

Sam chooses a guinea pig named Henry to be her pet, envisions a dog named Nelly visiting and helping her younger brother Liam feel comfortable in his kindergarten class, and encourages Liam to also get a guinea pig as a pet.

Sam wants a pet for her birthday, but her mom and dad have already said that their apartment is too small for a cat or a dog. A trip to Rainbow Street Shelter to look at the smaller animals can't hurt, though! At the shelter, Sam finds the perfect pet for her, a fluffy black guinea pig named Henry. But she can't help noticing how happy her little brother is when he's reading to Nelly, the Rainbow Street dog. Why can't he read like that when he's in school? Nelly looks happy, too. Sam starts to wonder . . . can a dog go to kindergarten?

Buster isn't fluffy or pretty like other cats—he's a crazy orange cat with attitude. And Mr. Larsen is the exact right person for him. Every morning Buster and Mr. Larsen sit on their porch in the sun, and every morning Josh sees them when he walks to school. When Mr. Larsen goes to the hospital and Buster goes missing, Josh and his family look for that crazy cat everywhere. But if Buster turns up, Rainbow Street Animal Shelter will have to help him find another home. That's when Josh and his family realize that—sometimes—life can choose a pet for you.

After his pet rabbit dies, Josh feels sad and does not want to own another pet until an elderly neighbor's cat goes missing.

Stories of ten men and women, from the 1770s to the present, who devoted their lives, and sometimes risked them, to answer some of the big questions in science and medicine.

Mona at the Rainbow Street Shelter finds the perfect home--and job--for an energetic beagle puppy who loves to sniff.

Amy lives and breathes horses, but all her horses are in books or in her head. So when she goes on a picnic with her friend Hannah's family, Hannah thinks Amy is imagining things when she says she heard a horse neigh nearby. But then Hannah hears a neigh, too! What's a horse doing in the park? With a little help from Mona at the Rainbow Street Shelter, Amy makes sure the horse is safe and sound. She almost hopes the owner never turns up, so that she could keep visiting the pony. . . .

When Henry's imagination gets mixed up with the truth during show and tell, his teacher suggests that he write and illustrate his own stories.